@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/288c9c95-da4f-46a7-8e05-844e1c1e1306> a dcat:Dataset ;
    dct:description """Modeled Bouger-Corrected Gravity data was extracted from the Pan American Center for Earth and Environmental Studies Gravity Database of the U.S. at http://irpsrvgis08.utep.edu/viewers/Flex/GravityMagnetic/GravityMagnetic_CyberShare/ on 2/29/2012. The downloaded text file was opened in an Excel spreadsheet. This spreadsheet data was then converted into an ESRI point shapefile in UTM Zone 13 NAD27 projection, showing location and gravity (in milligals). This data was then converted to grid and then contoured using ESRI Spatial Analyst. 

Data from From University of Texas: Pan American Center for Earth and Environmental Studies""" ;
    dct:identifier <https://data.openei.org/submissions/3183> ;
    dct:issued "2012-04-06T06:00:00+00:00"^^xsd:dateTime ;
    dct:modified "2021-08-24T21:32:58+00:00"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-108.6643 36.9326, -104.8082 36.9326, -104.8082 40.9751, -108.6643 40.9751, -108.6643 36.9326))"^^gsp:wktLiteral ] ;
    dct:title "Gravity Data for West-Central Colorado" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Richard Zehner" ;
            vcard:hasEmail <mailto:rzehner@gdareno.com> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/288c9c95-da4f-46a7-8e05-844e1c1e1306/resource/6cc7d59b-9e2d-429f-927b-50d46781c5c8> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "arcgis",
        "bouger",
        "central",
        "ckan",
        "colorado",
        "contour",
        "data",
        "geo",
        "geospatial",
        "geospatial-data",
        "geoss",
        "geothermal",
        "gis",
        "gravity",
        "line-shapefile",
        "national",
        "north-america",
        "point-shapefile",
        "shape-file",
        "shapefile",
        "united-states",
        "west",
        "west-central" .

<https://data.amerigeoss.org/dataset/288c9c95-da4f-46a7-8e05-844e1c1e1306/resource/6cc7d59b-9e2d-429f-927b-50d46781c5c8> a dcat:Distribution ;
    dct:description """Zip file containing point data and contours for Bouger anomaly in a portion of west-central Colorado. Includes the original spreadsheet data, a point shapefile showing gravity station locations and Bouger gravity, and a line shapefile showing 1 milligal contours. 
Projection: UTM Zone 13 NAD27. """ ;
    dct:format "ZIP" ;
    dct:issued "2022-08-08T11:20:24.378435"^^xsd:dateTime ;
    dct:modified "2025-11-20T14:34:59.787718"^^xsd:dateTime ;
    dct:title "Gravity Data Went-Central Colorado.zip" ;
    dcat:accessURL <https://gdr.openei.org/files/340/GravDataWCentralColorado.zip> ;
    dcat:mediaType "application/zip" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .